A new circular Dammann grating using a Hankel transform

被引：6
|
作者：
Wen, Fung Jacky [1 ]
Chung, Po Sheun [1 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, Kowloon 852, Hong Kong, Peoples R China
来源：
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2008年 / 10卷 / 07期
关键词：
diffraction and gratings; optical data storage; resonators; lasers; ring; microstructure fabrication;
D O I：
10.1088/1464-4258/10/7/075306
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new circular Dammann grating using a Hankel transform is proposed to generate a number of optical ring patterns. This grating shows that it can achieve high efficiency and excellent uniformity. A numerical solution is also presented together with the fabrication of a third-order CDG by dry etch lithography. Experimental results agree well with the scalar diffraction theory. This grating has the potential to be further developed into practical applications.
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页数：5
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